MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1fca03a7c77ad940b8f88e98640c2fca70f9e555780bcaaa3c8561f888e7e01a. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


ConnectWise


Vendor detections: 9


Intelligence 9 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1fca03a7c77ad940b8f88e98640c2fca70f9e555780bcaaa3c8561f888e7e01a
SHA3-384 hash: 4ccf36a67224d02a34467b1682e361c79006253259c460304bfe3c5a6f5e175656a9f5a6cd6676d47bc071433d899666
SHA1 hash: 5779815c35b028ebc4e7aa8b2bb2d1b8965741b0
MD5 hash: d7312c3aaacad42943e2b2cd4a8ded7f
humanhash: golf-tennessee-colorado-quebec
File name:ScreenConnect.ClientSetup.msi
Download: download sample
Signature ConnectWise
Create hunting rule
File size:11'685'888 bytes
First seen:2026-08-05 13:30:16 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:PHxcp9ym3nltDUJVBHxcp9ym3THxcp9ym3GHxcp9ym3rHxcp9ym3MHxcp9ym3:ZGplpCGp9GpUGp1GpqGp
TLSH T1D2C623116BF89678F1F22A35E876A0B1A5367C119E23D12E2324791E2C75EC0C9B3777
TrID 80.0% (.MSI) Microsoft Windows Installer (454500/1/170)
10.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
7.8% (.MSP) Windows Installer Patch (44509/10/5)
1.4% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter abuse_ch
Tags:ConnectWise msi rmm screenconnect

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
SE SE
Vendor Threat Intelligence
Malware configuration found for:
MSI
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e378909f-37dd-459a-b06c-42e0fc23a448/
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/78947/
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm base64 CAB evasive expand expired-cert explorer fingerprint installer installer lolbin lolbin overlay packed packed reconnaissance rundll32
Link:
https://www.filescan.io/uploads/6a733b0f184d340109cd18c4/reports/f731e89b-e368-4b67-8b90-f5514db998b6/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/1fca03a7c77ad940b8f88e98640c2fca70f9e555780bcaaa3c8561f888e7e01a
Verdict:
Adware
File Type:
msi
Link:
https://opentip.kaspersky.com/1fca03a7c77ad940b8f88e98640c2fca70f9e555780bcaaa3c8561f888e7e01a/results?tab=lookup
Result
Threat name:
ScreenConnect Tool
Create hunting rule
Detection:
malicious
Classification:
evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1952737
Signature
.NET source code references suspicious native API functions
Contains functionality to hide user accounts
Enables network access during safeboot for specific services
Joe Sandbox ML detected suspicious sample
Modifies security policies related information
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Reads the Security eventlog
Reads the System eventlog
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1952737 Sample: ScreenConnect.ClientSetup.msi Startdate: 05/08/2026 Architecture: WINDOWS Score: 84 52 stingold.com 2->52 54 relay.stingold.com 2->54 58 Multi AV Scanner detection for dropped file 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 .NET source code references suspicious native API functions 2->62 64 2 other signatures 2->64 8 msiexec.exe 94 50 2->8         started        12 ScreenConnect.ClientService.exe 2 5 2->12         started        15 msiexec.exe 6 2->15         started        signatures3 process4 dnsIp5 34 C:\Windows\Installer\MSI1B20.tmp, PE32 8->34 dropped 36 C:\Windows\Installer\MSI1543.tmp, PE32 8->36 dropped 38 C:\...\ScreenConnect.WindowsFileManager.exe, PE32 8->38 dropped 42 9 other files (7 malicious) 8->42 dropped 68 Enables network access during safeboot for specific services 8->68 70 Modifies security policies related information 8->70 17 msiexec.exe 8->17         started        19 msiexec.exe 1 8->19         started        21 msiexec.exe 8->21         started        56 stingold.com 152.232.80.154, 49707, 8041 SERVER-MANIA-B2NetSolutionsIncCA United States 12->56 72 Reads the Security eventlog 12->72 74 Reads the System eventlog 12->74 23 ScreenConnect.WindowsClient.exe 2 12->23         started        26 ScreenConnect.WindowsClient.exe 2 12->26         started        40 C:\Users\user\AppData\Local\Temp\MSIB0.tmp, PE32 15->40 dropped file6 signatures7 process8 signatures9 28 rundll32.exe 11 17->28         started        32 conhost.exe 17->32         started        66 Contains functionality to hide user accounts 23->66 process10 file11 44 C:\Users\user\...\ScreenConnect.Windows.dll, PE32 28->44 dropped 46 C:\...\ScreenConnect.InstallerActions.dll, PE32 28->46 dropped 48 C:\Users\user\...\ScreenConnect.Core.dll, PE32 28->48 dropped 50 4 other malicious files 28->50 dropped 76 Contains functionality to hide user accounts 28->76 signatures12
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1fca03a7c77ad940b8f88e98640c2fca70f9e555780bcaaa3c8561f888e7e01a/
Threat name:
ByteCode-MSIL.PUA.RAdminConnectWise
Create hunting rule
Status:
Malicious
First seen:
2026-08-05 08:31:49 UTC
File Type:
Binary (Archive)
Extracted files:
173
AV detection:
14 of 24 (58.33%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=d7fahj6hplmubohyr2mgidbpzjyptzkvpaf4vkr4qvq7rchh4ana._file
Verdict:
malicious
Label(s):
ADMINTOOL_ScreenConnect
Create hunting rule
Link:
https://reports.threatray.com/6b73a774-dbce-419a-ace6-b574e07a54db
Result
Malware family:
n/a
Score:
  8/10
Tags:
backdoor discovery persistence privilege_escalation ransomware rat revoked_codesign
Link:
https://tria.ge/reports/260805-qsd9ysgp8x/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Boot or Logon Autostart Execution: Authentication Package
Drops file in System32 directory
Enumerates connected drives
ConnectWise ScreenConnect remote access tool
Event Triggered Execution: Component Object Model Hijacking
Executes dropped EXE
Loads dropped DLL
Sets service image path in registry
Signed with revoked ConnectWise certificate
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1fca03a7c77ad940b8f88e98640c2fca70f9e555780bcaaa3c8561f888e7e01a

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:INDICATOR_RMM_ConnectWise_ScreenConnect
Create hunting rule
Author:ditekSHen
Description:Detects ConnectWise Control (formerly ScreenConnect). Review RMM Inventory
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:win_evilconwi_w0
Create hunting rule
Author:Karsten Hahn @ G DATA CyberDefense
Description:Settings from app.config that hide the connection of the client. These settings are potentially unwanted

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

ConnectWise

Microsoft Software Installer (MSI) msi 1fca03a7c77ad940b8f88e98640c2fca70f9e555780bcaaa3c8561f888e7e01a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3897364/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/78947/

Comments